The Cottontop Tamarin (Saguinus oedipus), also known as the Pinché Tamarin, is a small New World monkey. It is found in tropical forest edges and secondary forests where it is arboreal and diurnal and only in Northern Columbia. They are also found at zoos … this photo was taken at the San Antonio Zoo. They number less than 6000 worldwide, 1800 of which are in captivity. A critically endangered animal protected by International Conservation Law, their numbers are rapidly declining, primarily as a result of habitat loss. Conservation International has information on how each of us can take action to stem habitat loss, reduce carbon footprints, and provide financial assistance to conservationists in the lab and in the field.